JP2017161579A - Optical receptacle and optical module - Google Patents

Abstract

An optical receptacle capable of freely adjusting the number of channels according to a required number of channels is provided. An optical receptacle includes a first optical surface, a second optical surface, a first fitting portion, and a second fitting portion. A 1st optical surface makes the 1st emitted light radiate | emitted from the photoelectric conversion element enter. The second optical surface is incident on the first optical surface and emits the first emitted light that has passed through the inside of the optical receptacle toward the end surface of the optical transmission body. The first fitting portion is disposed on a first side surface different from the surface on which the first optical surface is formed and the surface on which the second optical surface is formed. The second fitting portion is disposed on the second side surface facing the first side surface across the optical path of the first emitted light or the second emitted light, and has a shape that can be fitted with the first fitting portion. [Selection] Figure 3

Description

  The present invention relates to an optical receptacle and an optical module having the optical receptacle.

  Conventionally, an optical module including a light emitting element such as a surface emitting laser (for example, VCSEL: Vertical Cavity Surface Emitting Laser) has been used for optical communication using an optical transmission body such as an optical fiber or an optical waveguide. The optical module includes an optical receptacle that allows light including communication information emitted from the light emitting element to enter the end face of the optical transmission body.

  In recent years, optical modules for optical communication using optical fibers have a tendency to be multi-core with an increase in communication speed. Therefore, an optical receptacle having a plurality of channels for simultaneously transmitting and receiving a plurality of lights including communication information is used (see, for example, Patent Document 1).

  The optical receptacle described in Patent Document 1 includes a plurality of first optical surfaces on which light emitted from a light emitting element is incident, a total reflection surface that reflects light incident on the optical receptacle at the first optical surface, A plurality of second optical surfaces for emitting the light reflected by the total reflection surface toward the end surface of the optical transmission body. The optical receptacle described in Patent Document 1 can optically couple a plurality of photoelectric conversion elements and end faces of a plurality of optical transmission bodies. The optical receptacle described in Patent Document 1 can be integrally formed by injection molding using a thermoplastic transparent resin. Specifically, the optical receptacle described in Patent Document 1 can be manufactured by pouring a thermoplastic transparent resin into a cavity of a mold, cooling and solidifying the mold, and then releasing the optical receptacle.

JP 2009-163212 A

  However, the optical receptacle described in Patent Document 1 must be newly manufactured from a mold when a further increase in the number of cores is required, which increases the manufacturing time and manufacturing cost of the mold. . Also, optical receptacles with more than 12 channels are not fully standardized and there are few types. Also, we do not know how much the required number of channels will increase in the future.

  The present invention has been made in view of this point, and an object of the present invention is to provide an optical receptacle that can freely adjust the number of channels in accordance with the required number of channels. Another object of the present invention is to provide an optical module having the optical receptacle.

  An optical receptacle according to the present invention is disposed between one or two or more photoelectric conversion elements and one or two or more optical transmission bodies, and the one or two or more photoelectric conversion elements and the one or two or more lights. An optical receptacle for optically coupling with an end face of the transmission body, the first outgoing light emitted from the photoelectric conversion element is incident or emitted from the end face of the optical transmission body, and the optical receptacle One or two or more first optical surfaces that emit the second outgoing light that has passed through the photoelectric conversion element toward the photoelectric conversion element, and the first optical surface that is incident on the first optical surface and passes through the inside of the optical receptacle. One or two or more second optical surfaces for emitting incident light toward the end face of the optical transmission body or for entering the second outgoing light emitted from the end face of the optical transmission body, and the first optical surface include The formed surface and the second light One or two or more first fitting portions disposed on a first side surface different from the surface on which the surface is formed, and the first side surface across the optical path of the first emitted light or the second emitted light 1 or 2 or more 2nd fitting parts which are arrange | positioned at the 2nd side surface which opposes, and have a shape which can be fitted with the said 1 or 2 or more 1st fitting part.

  An optical module according to the present invention is disposed on a substrate, one or more photoelectric conversion elements disposed on the substrate, and the first optical surface is opposed to the photoelectric conversion element. A plurality of optical receptacles according to the present invention, wherein the plurality of optical receptacles are connected to each other by fitting the first fitting portion and the second fitting portion adjacent to each other. .

  According to the present invention, it is possible to freely increase or decrease the number of channels of the optical receptacle and the optical module according to the required number of channels. Since there is no need to newly manufacture a mold according to the number of channels required, the manufacturing time and manufacturing cost of the mold do not increase.

FIG. 1 is a cross-sectional view schematically showing a configuration of an optical module according to an embodiment. 2A to 2F are diagrams illustrating the configuration of the optical receptacle according to the embodiment. Drawing 3 is a mimetic diagram for explaining arrangement of the 1st fitting part and the 2nd fitting part. 4A to 4F are diagrams showing the configuration of the optical receptacle according to the first modification of the present embodiment.

  Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[Configuration of optical module]
FIG. 1 is a cross-sectional view schematically showing a configuration of an optical module 100 according to an embodiment of the present invention. In FIG. 1, hatching of the cross section of the optical receptacle 120 is omitted to show the optical path in the optical receptacle 120. In FIG. 1, the alternate long and short dash line indicates the optical axis of light, and the broken line indicates the outer diameter of light.

  As shown in FIG. 1, the optical module 100 includes a photoelectric conversion device 110 and a plurality of optical receptacles 120. The optical module 100 according to the present embodiment is an optical module for transmission. The optical module 100 is used in a state where a plurality of optical transmission bodies 130 are connected to the optical receptacle 120.

  The photoelectric conversion device 110 includes a substrate 111 and a plurality of photoelectric conversion elements 112.

  The substrate 111 holds the photoelectric conversion element 112. The substrate 111 is, for example, a glass composite substrate, a glass epoxy substrate, or a flexible sill substrate.

  The photoelectric conversion element 112 is disposed on the substrate 111. In the optical module 100 according to the present embodiment, a light emitting element is disposed on the substrate 111 as the photoelectric conversion element 112. In the present embodiment, a plurality of light emitting elements are arranged on the same straight line along a direction perpendicular to the paper surface of FIG.

  The light emitting element emits laser light in a direction perpendicular to the surface of the substrate 111. More specifically, the light emitting element emits laser light from a photoelectric conversion surface (light emitting surface). The number and position of the light emitting elements are not particularly limited, and can be appropriately changed according to the application. In the present embodiment, among the plurality of optical receptacles 120, the number of light emitting elements corresponding to one optical receptacle 120 is four. The light emitting element is, for example, a vertical cavity surface emitting laser (VCSEL).

  The optical receptacle 120 optically couples the photoelectric conversion element 112 and the end face of the optical transmission body 130 while being disposed between the photoelectric conversion element 112 and the optical transmission body 130. The optical receptacle 120 emits the first outgoing light L1 emitted from the photoelectric conversion element 112 (light emitting element) toward the end face of the optical transmission body 130. The number of optical receptacles 120 is not particularly limited as long as it is plural, and may be appropriately determined according to the application. In the present embodiment, the number of optical transmission bodies 130 corresponding to one optical receptacle 120 among the plurality of optical receptacles 120 is four.

  The photoelectric conversion device 110 and the optical receptacle 120 are fixed to each other by a known fixing means such as an adhesive (for example, a heat / ultraviolet curable resin).

  The optical transmission body 130 is attached to the optical receptacle 120 via known attachment means in a state of being accommodated in a multi-core collective connector. The type of the optical transmission body 130 is not particularly limited. Examples of the type of the optical transmission body 130 include an optical fiber and an optical waveguide. In the present embodiment, the optical transmission body 130 is an optical fiber. The optical fiber may be a single mode method or a multi mode method. The number of the optical transmission bodies 130 is not particularly limited, and can be changed as appropriate according to the application. In the present embodiment, a plurality of optical transmission bodies 130 are arranged on the same straight line along a direction perpendicular to the paper surface of FIG.

[Configuration of optical receptacle]
2A to 2F are diagrams showing the configuration of the optical receptacle 120 according to the present embodiment. 2A is a plan view of the optical receptacle 120, FIG. 2B is a bottom view, FIG. 2C is a front view, FIG. 2D is a rear view, and FIG. 2E is a left side view. FIG. 2F is a right side view. In the following description, the surface on the side to which the optical transmission body 130 is connected is described as the “front” of the optical receptacle 120. As described above, the optical module 100 according to the present embodiment includes a plurality of optical receptacles 120, but the shapes of the optical receptacles 120 constituting the plurality of optical receptacles 120 are the same. Therefore, in the following description, one optical receptacle 120 among the plurality of optical receptacles 120 will be described.

  As shown in FIGS. 1 and 2A to 2F, the optical receptacle 120 is a member having a substantially rectangular parallelepiped shape. In the present embodiment, a prismatic first recess 1201 is formed on the bottom surface of the optical receptacle 120. A second recess 1202 having a substantially pentagonal prism shape is formed on the top surface of the optical receptacle 120.

  The optical receptacle 120 is formed using a material that is transparent to light having a wavelength used for optical communication. Examples of such materials include transparent resins such as polyetherimide (PEI) and cyclic olefin resins. Moreover, the manufacturing method of the optical receptacle 120 is not specifically limited. The optical receptacle 120 is manufactured by, for example, an injection molding method.

  The materials of the plurality of optical receptacles 120 constituting the optical module 100 are preferably the same as each other. Thereby, the linear expansion coefficients of the plurality of optical receptacles 120 are the same, and even when the optical module 100 is used at a high temperature, a reduction in shape accuracy can be suppressed.

  The optical receptacle 120 includes a first optical surface 121, a reflecting surface 122, a second optical surface 123, a first fitting portion 124, and a second fitting portion 125. In the present embodiment, the number of first optical surfaces 121 and second optical surfaces 123 is four each.

  The first optical surface 121 makes the first outgoing light L 1 emitted from the photoelectric conversion element (light emitting element) 112 enter the optical receptacle 120. At this time, the first optical surface 121 causes the first outgoing light L1 emitted from the photoelectric conversion surface of the photoelectric conversion element 112 to enter the optical receptacle 120 while being refracted, and converts it into collimated light.

  The number of the first optical surfaces 121 is not particularly limited and can be appropriately selected depending on the application. In the present embodiment, the number of first optical surfaces 121 is four. The four first optical surfaces 121 are disposed on the bottom surface of the optical receptacle 120 so as to face the four photoelectric conversion elements 112, respectively. In the present embodiment, four first optical surfaces 121 are arranged in a line along the short side direction of the optical receptacle 120 on the bottom surface of the first recess 1201 provided on the back side (bottom surface) of the optical receptacle 120. Yes.

  The shape of the first optical surface 121 is not particularly limited, and may be a flat surface or a curved surface. In the present embodiment, the first optical surface 121 is a convex lens surface that is convex toward the photoelectric conversion element 112. Further, the planar view shape of the first optical surface 121 is a circular shape. The central axis of the first optical surface 121 is preferably perpendicular to the photoelectric conversion surface of the photoelectric conversion element 112 (and the surface of the substrate 111). The central axis of the first optical surface 121 preferably coincides with the optical axis of the first emitted light L1 emitted from the photoelectric conversion element 112 (light emitting element). In the present embodiment, the central axis of the first optical surface 121 coincides with the optical axis of the first outgoing light L1.

  The reflecting surface 122 reflects the first outgoing light L1 incident on the optical receptacle 120 at the first optical surface 121 toward the second optical surface 123.

  The reflection surface 122 constitutes a part of the inner surface of the second recess 1202 formed on the top surface of the optical receptacle 120. The reflective surface 122 is inclined so as to approach the second optical surface 123 (the front surface of the optical receptacle 120) from the bottom surface of the optical receptacle 120 toward the top surface. The inclination angle of the reflecting surface 122 is not particularly limited. In the present embodiment, the inclination angle of the reflecting surface 122 is 45 ° with respect to the optical axis of the light incident on the reflecting surface 122 (in the present embodiment, the first outgoing light L1). The shape of the reflective surface 122 is not particularly limited. In the present embodiment, the shape of the reflecting surface 122 is a plane. The first incident light (outgoing light L1) enters the reflecting surface 122 at an incident angle larger than the critical angle.

  The second optical surface 123 is incident on the first optical surface 121 and emits the first outgoing light L1 that has passed through the inside of the optical receptacle 120 toward the end face of the optical transmission body 130. At this time, the second optical surface 123 causes the first outgoing light L1 to converge toward the end face of the optical transmission body 130 while converging.

  The number of the second optical surfaces 123 is not particularly limited, and can be appropriately selected according to the application. In the present embodiment, the number of second optical surfaces 123 is four. The four second optical surfaces 123 are disposed so as to face the end surfaces of the four optical transmission bodies 130 on the front surface of the optical receptacle 120, respectively.

  The shape of the second optical surface 123 is not particularly limited, and may be a flat surface or a curved surface. In the present embodiment, the shape of the second optical surface 123 is a convex lens surface that is convex toward the end surface of the optical transmission body 130. The planar view shape of the second optical surface 123 is a circular shape. The central axis of the second optical surface 123 is preferably perpendicular to the end surface of the optical transmission body 130.

  The first fitting portion 124 is fitted to a second fitting portion 125 described later. More specifically, the first fitting portion 124 of one of the plurality of optical receptacles 120 that are adjacent to each other among the plurality of optical receptacles 120 constituting the optical module 100 according to the present embodiment is provided. The other optical receptacle 120 is fitted into the second fitting portion 125. Thereby, the plurality of optical receptacles 120 are coupled to each other while being positioned.

  FIG. 3 is a schematic diagram for explaining the arrangement of the first fitting portion 124 and the second fitting portion 125 described later. FIG. 3 shows a state where the three optical receptacles 120 are connected to each other by fitting the first fitting portion 124 and the second fitting portion 125 together. The arrows in FIG. 3 indicate the fitting directions of the first fitting portion 124 and the second fitting portion 125.

  As shown in FIG. 3, the first fitting portion 124 includes a surface on which the first optical surface 121 is formed (in this embodiment, a bottom surface) and a surface on which the second optical surface 123 is formed (this book). In the embodiment, the first side surface 1203 (the left side surface in the present embodiment) different from the front surface is disposed at a position facing the second fitting portion 125.

  The arrangement, shape, size, and number of the first fitting portions 124 are not particularly limited as long as the plurality of optical receptacles 120 constituting the optical module 100 are appropriately connected to each other, and the arrangement of the second fitting portions 125 is not limited. , Shape, size, and number. The shape of the 1st fitting part 124 will not be specifically limited if it is a shape which can be fitted with the 2nd fitting part 125, For example, it is a concave shape or a convex shape. Examples of the shape of the first fitting portion 124 in plan view include a circular shape, an elliptical shape, a quadrangular shape, and a polygonal shape. In the present embodiment, the first fitting portion 124 is two columnar convex portions.

  The second fitting portion 125 is fitted to the first fitting portion 124. More specifically, among the plurality of optical receptacles 120 constituting the optical module 100 according to the present embodiment, the second fitting portion 125 of one optical receptacle 120 of the two optical receptacles 120 adjacent to each other is provided. The other optical receptacle 120 is fitted into the first fitting portion 124. Thereby, the plurality of optical receptacles 120 are coupled to each other while being positioned.

  As shown in FIG. 3, the second fitting portion 125 has a second side surface 1204 (this embodiment) facing the first side surface 1203 (the left side surface in the present embodiment) across the optical path of the first emitted light L1. In the embodiment, it is disposed at a position on the right side surface) facing the first fitting portion 124.

  The arrangement, shape, size, and number of the second fitting portions 125 are not particularly limited as long as the plurality of optical receptacles 120 constituting the optical module 100 are appropriately connected to each other, and the arrangement of the first fitting portions 124 is not limited. , Shape, size, and number. The shape of the 2nd fitting part 125 will not be specifically limited if it is a shape which can be fitted with the 1st fitting part 124, For example, it is a concave shape or a convex shape. Examples of the shape of the second fitting portion 125 in plan view include a circular shape, an elliptical shape, a quadrangular shape, and a polygonal shape. In the present embodiment, the second fitting portion 125 is two cylindrical concave portions.

(Optical path in optical module)
Next, the optical path in the optical module 100 will be described.

  The first outgoing light L1 emitted from the photoelectric conversion element 112 (light emitting element) enters the optical receptacle 120 at the first optical surface 121. At this time, the first outgoing light L1 is converted into collimated light by the first optical surface 121. Next, the first outgoing light L 1 incident on the optical receptacle 120 at the first optical surface 121 is reflected toward the second optical surface 123 by the reflecting surface 122. The first emitted light L1 that has reached the second optical surface 123 is emitted from the optical receptacle 120 at the second optical surface 123 and reaches the end surface of the optical transmission body 130.

  As described above, the optical receptacle 120 according to the present embodiment can optically appropriately couple the photoelectric conversion element 112 and the end face of the optical transmission body 130.

(effect)
Optical receptacle 120 according to the present embodiment has first fitting portion 124 and second fitting portion 125 that can be fitted to each other on both side surfaces (first side surface 1203 and second side surface 1204) of optical receptacle 120. Thereby, in the optical module 100 according to the present embodiment, the number of channels can be freely increased or decreased according to the required number of channels by increasing or decreasing the number of optical receptacles 120 to be coupled.

  Further, when the resin optical receptacle 120 is manufactured, as the number of channels increases, the portion of the mold used for forming the optical surfaces (the first optical surface 121, the reflecting surface 122, and the second optical surface 123). The processing time and cost of the process will increase. On the other hand, in the present invention, it is not necessary to newly manufacture a mold for the optical receptacle 120 according to the required number of channels, so that the manufacturing time and manufacturing cost of the mold for the optical receptacle 120 are reduced. Can be reduced.

[Modification 1]
In the above embodiment, the optical receptacle 120 in which the number of the first optical surfaces 121 and the second optical surfaces 123 is four has been described. However, the first optical surface 121 and the second optical surfaces of the optical receptacle according to the present invention are described. The number of 123 should just be 1 or 2 and is not limited to said aspect.

  4A to 4F are diagrams showing a configuration of an optical receptacle 120 'according to the first modification of the present embodiment. 4A is a plan view of the optical receptacle 120 ′, FIG. 4B is a bottom view, FIG. 4C is a front view, FIG. 4D is a rear view, and FIG. 4E is a left side view. FIG. 4F is a right side view. As in the optical receptacle 120 ′ according to the first modification, the number of the first optical surfaces 121 and the second optical surfaces 123 may be twelve.

  Further, a second recess 1202 ′ having a substantially pentagonal prism shape (referred to as “a recess” in the claims) is formed on the top surface of the optical receptacle 120 ′ according to the first modification. The second recess 1202 ′ opens to the outside at the first side surface 1203 and the second side surface 1204. In this case, since the reflecting surface 122 can be disposed over the entire area between the first side surface 1203 and the second side surface 1204, the first optical surface 121 and the third optical surface 123 are also the first side surface 1203 and the second side surface 1204. Between the two. Therefore, when the plurality of optical receptacles 120 ′ are connected to each other, the first optical surface 121 and the third optical surface 123 can be arranged without a gap even in the vicinity of the connection portion. It is preferable from the viewpoint of space saving in the optical module that the second recess 1202 ′ formed on the top surface of the optical receptacle 120 ′ is open to the outside at the first side surface 1203 and the second side surface 1204.

  In Modification 1, since a channel is also formed in the vicinity of the first side surface 1203 and the second side surface 1204, the first fitting portion 124 and the second fitting portion 125 obstruct the optical path in the optical receptacle 120 ′. It is arranged at a position that does not.

[Modification 2]
Although the transmission optical module 100 has been described in the above embodiment, the optical module according to the present invention is not limited to this mode. For example, the optical module according to the present invention may be a receiving optical module. Hereinafter, the optical module 100 ″ according to the second modification of the present embodiment will be described. The configuration of the receiving optical module 100 ″ is the same as the configuration of the transmitting optical module 100 except for the photoelectric conversion element 112. Only the function of the receiving optical module is different from the function of the transmitting optical module 100 (see FIG. 1). Therefore, the same components are denoted by the same reference numerals and the description thereof is omitted.

  In the portion functioning as the receiving optical module 100 ″, a light receiving element is arranged on the substrate 111 as the photoelectric conversion element 112.

  The light receiving element receives the second emitted light L <b> 2 emitted from the end face of the optical transmission body 130 and passing through the inside of the optical receptacle 120. More specifically, the light receiving element receives the second emitted light L2 at the photoelectric conversion surface (light receiving surface). The number and position of the light receiving elements are not particularly limited. The light receiving element is, for example, a photodiode (PD).

  The optical receptacle 120 according to Modification 2 emits the second emitted light L2 emitted from the end face of the optical transmission body 130 toward the photoelectric conversion element 112 (light receiving element).

  Hereinafter, the functions of the optical surfaces (the first optical surface 121, the reflecting surface 122, and the second optical surface 123) of the optical receptacle 120 in the receiving optical module 100 ″ will be described.

  The second optical surface 123 causes the second outgoing light L <b> 2 emitted from the end face of the optical transmission body 130 to enter the optical receptacle 120. At this time, the second optical surface 123 causes the second outgoing light L2 emitted from the end face of the optical transmission body 130 to enter the optical receptacle 120 while being refracted, and converts it into collimated light. At this time, it is preferable that the central axis of the second optical surface 123 coincides with the optical axis of the second outgoing light L2 emitted from the end face of the optical transmission body 130. In the present embodiment, the central axis of the second optical surface 123 coincides with the optical axis of the second outgoing light L2.

  The reflecting surface 122 reflects the second outgoing light L <b> 2 that has entered the optical receptacle 120 at the second optical surface 123 toward the first optical surface 121.

  The first optical surface 121 is emitted from the end face of the optical transmission body 130, and emits the second emitted light L <b> 2 that has passed through the inside of the optical receptacle 120 toward the photoelectric conversion element (light receiving element) 112. At this time, the first optical surface 121 causes the second emitted light L2 to converge and exit toward the photoelectric conversion surface of the photoelectric conversion element 112.

  Note that the second fitting portion 125 is included in the second side surface 1204 (the right side surface in Modification 2) that faces the first side surface 1203 (the left side surface in Modification 2) across the optical path of the second emitted light L2. Is disposed at a position facing the first fitting portion 124.

  Next, the optical path in the optical module 100 ″ will be described.

  The second outgoing light L2 emitted from the end face of the optical transmission body 130 enters the optical receptacle 120 at the second optical surface 123. At this time, the second outgoing light L2 is converted into collimated light by the second optical surface 123. Next, the second outgoing light L 2 that has entered the optical receptacle 120 at the second optical surface 123 is reflected toward the first optical surface 121 by the reflecting surface 122. The second emitted light L2 reaching the first optical surface 121 is emitted from the optical receptacle 120 at the first optical surface 121 and reaches the photoelectric conversion surface (light receiving surface) of the photoelectric conversion element (light receiving element) 112.

  As described above, the optical receptacle 120 according to the present embodiment can optically appropriately couple the photoelectric conversion element 112 and the end face of the optical transmission body 130.

  In the above-described embodiment and Modification 2 described above, the transmission optical module 100 and the reception optical module 100 ″ have been described. However, the optical module of the present invention is not limited to this aspect. The optical module for transmission / reception may include a part that functions as an optical module for transmission and a part that functions as an optical module for reception.

  Moreover, although the optical receptacle 120 which has the reflective surface 122 was demonstrated in the said embodiment, the optical receptacle which concerns on this invention is not limited to this aspect. For example, the optical receptacle 120 may not have the reflecting surface 122. In this case, the first optical surface 121 and the second optical surface 123 are disposed on opposite sides of the optical receptacle 120. In the portion functioning as the optical module for transmission, the first outgoing light L1 emitted from the photoelectric conversion element (light emitting element) is incident on the optical receptacle 120 at the first optical surface 121 and then reflected on the reflective surface 122. The light is emitted out of the optical receptacle 120 by the second optical surface 123 without being reflected, and reaches the end surface of the optical transmission body 130. On the other hand, in the portion functioning as a receiving optical module, the second outgoing light L2 emitted from the end face of the optical transmission body 130 is incident on the optical receptacle 120 by the second optical surface 123 and then reflected by the reflecting surface 122. Instead, the light is emitted from the first optical surface 121 to the outside of the optical receptacle 120 and reaches the photoelectric conversion surface of the photoelectric conversion element (light receiving element) 112.

  Further, a reflective film made of a thin film of a metal (for example, Al, Ag, Au, etc.) having a high light reflectance may be formed on the reflective surface 122. In order to give priority to the reduction of the number of parts, it is preferable to adopt a configuration using only the total reflection surface.

  The optical receptacle and the optical module according to the present invention are useful for optical communication using an optical transmission body, for example.

100, 100 ″ optical module 110 photoelectric conversion device 111 substrate 112 photoelectric conversion element 120, 120 ′ optical receptacle 1201 first concave portion 1202, 1202 ′ second concave portion 121 first optical surface 122 reflecting surface 123 second optical surface 124 first fitting Joint part 125 Second fitting part 130 Optical transmission body L1 First outgoing light L2 Second outgoing light

Claims (7)

One or two or more photoelectric conversion elements and one or two or more optical transmission bodies are disposed between the one or more photoelectric conversion elements and the end faces of the one or two or more optical transmission bodies. An optical receptacle for coupling to
The first outgoing light emitted from the photoelectric conversion element is incident or the second outgoing light emitted from the end face of the optical transmission body and passing through the inside of the optical receptacle is emitted toward the photoelectric conversion element 1 Or two or more first optical surfaces;
The first outgoing light incident on the first optical surface and passing through the inside of the optical receptacle is emitted toward the end face of the optical transmission body, or the second outgoing light emitted from the end face of the optical transmission body. One or more second optical surfaces on which incident light is incident;
1 or 2 or more 1st fitting parts arrange | positioned on the 1st side surface different from the surface in which the said 1st optical surface is formed, and the surface in which the said 2nd optical surface is formed,
1 which is disposed on a second side surface facing the first side surface across the optical path of the first emitted light or the second emitted light and has a shape that can be fitted with the one or more first fitting portions. Or two or more second fitting portions;
Having an optical receptacle.   The optical receptacle according to claim 1, wherein the material of the optical receptacle is a resin.   3. The optical receptacle according to claim 1, wherein the number of the first optical surface and the number of the second optical surfaces is four each.   3. The optical receptacle according to claim 1, wherein the number of the first optical surface and the number of the second optical surfaces is 12, respectively.   The first outgoing light incident on the first optical surface is reflected toward the second optical surface, or the second outgoing light incident on the second optical surface is reflected toward the first optical surface. The optical receptacle according to claim 1, further comprising a reflective surface. The reflective surface is a part of an inner surface of a recess formed in the optical receptacle;
The recess is open to the outside on the first side surface and the second side surface,
The optical receptacle according to claim 5. A substrate,
One or more photoelectric conversion elements disposed on the substrate;
The optical receptacle according to any one of claims 1 to 6, wherein the first optical surface is disposed on the substrate so as to face the photoelectric conversion element;
Have
The plurality of optical receptacles are connected to each other by fitting the first fitting portion and the second fitting portion adjacent to each other,
Optical module.

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